Explosives and propellants contain considerable chemical energy that can be converted into rapid expansion. In contrast to the simple burning of a fuel, explosives and propellants are self-contained and do not need an external supply of oxygen via air. Since their energy content inherently creates the risk of accidental triggering of the...

Lincoln's humor and personal tales do much to convey the flavor of modern particle physics research. -- Symmetry

The Big Bang, the birth of the universe, was a singular event. All of the matter of the universe was concentrated at a single point, with temperatures so high that even the familiar protons and...

For decades, physicists have been fascinated with the possibility that two seemingly independent aspects of our world—matter and force—may in fact be intimately...